Research Note: Glufosinate-Ammonium Reduces Growth and Aflatoxin, B_1 Production by Aspergillus flavus

摘要

The herbicide glufosinate-ammonium (GA) [butanoic acid, 2-amino-4-(hydroxymethylphosphinyl)-ammonium salt] was tested at concentrations from 2 to 2,000 g GA per ml for activity against growth and aflatoxin B_1 (AFB_1) production by the mycotoxigenic fungus Aspergillus flavus Link:Fr. The highest concentration (2,000 μg GA per ml) reduced colony diameter of A. flavus strain AF13 by 80/100. AFB_1 production was inhibited by 90/100 at this concentration. Reduction in mycelial dry weight and AFB_1 production in response to GA application ranged from 17.2 to 97.1/100 and from 39.1 to 90.1 /100, respectively.